VFD Programming Questions

[David Buchhauser]

Stan Kern is looking for help getting his new spindle up and running. In addition to installing an external potentiometer for speed control, what other parameters does he need to set. I have attached a link to the users manual pages for his VFD. I would have thought that if he purchased these as a set the VFD would come pre-programmed to match the spindle. That was the case with my 5HP water cooled ATC spindle/VFD combo I purchased a few years back.

I'm hoping that Gary Campbell will chime in here.

Thanks,
David

"David
i have the spindle hooked up but i cannot seem to understand how to program it as the frequency.,speed and 3 other items are required
but when i go to program it , it seems hard to understand
i attsched about 3/4 of the manual and can scan the balance
The VFD has to be programmed and that's where I am lost
thanks for looking into this
stan"

https://photos.app.goo.gl/p2mFLJMYUvGtuz2m9

[George Yetka]

Mostly you need to put in the motor info.
Frequency is measured in HZ 60 hz is generally your motor running design rpm/power. This can go up
I would lock hz so you can not go past 60.
You can program soft starts which is something I would do.(not too soft that it takes minutes to start)

[George Yetka]

Another item this vfd has is braking. That may be a nice option to slow down the spindle if time is important.

I would try and find some youtube videos on your paticular VFD. Ive worked with many over the years. They are basically all the same but navigation is usually different.

[stan kern]

I am looking at utubes as you say navigation is different possibly that's my problem
I know i need to get these settings into the VFD
V-----380volts
HZ----300
RPM---18000
KW(HP)-7.5
AMP---15
Is.f--poli2..TA:20 C ..serv:s1
n=0.8-cosp 0.75...ip:50...air cooling
I will keep plugging at it

[stan kern]

I might have got it , seems like its working fine
Is there a procedure to startup the spindle before you start cutting
ie to warm it up

[David Buchhauser]

I might have got it , seems like its working fine
Is there a procedure to startup the spindle before you start cutting
ie to warm it up

Yes - push the start button on the vfd, or turn the spindle from your software control program (on-screen). What control software are you using?
David

[stan kern]

No , I meant i read someplace you are supposed to warm it up ie so many minutes at a low rpm and the so many minutes at a high rpm

[stan kern]

things are progressing, i have inputted most items that i was sure of , at least its running

[Jim Becker]

No , I meant i read someplace you are supposed to warm it up ie so many minutes at a low rpm and the so many minutes at a high rpm

The warm-up macro on my Camaster is about 5 minutes long...the spindle runs after the machine checks limits. Even if you have to do it manually, yea...do the warm-up.

[stan kern]

ok and vary the speed ie low rpm then near max 18000

[stan kern]

also because i was a router person I ran the router for all my work at 19000 rpm , but its not the case with the spindle
could someone give me some ball park figures for hardwood---softwood--plywood 3/4 thick and acrylics 1/4 thick
thanks

[David Buchhauser]

also because i was a router person I ran the router for all my work at 19000 rpm , but its not the case with the spindle
could someone give me some ball park figures for hardwood---softwood--plywood 3/4 thick and acrylics 1/4 thick
thanks

Stan - it's mostly based on chip load. I think there are other posts here talking about that in detail.

David

[stan kern]

ok I use the chip load in aspire

[David Buchhauser]

Stan - you may find this useful for chip load calculations.

David

https://mellowpine.com/cnc/chip-load-guide/

[John TenEyck]

also because i was a router person I ran the router for all my work at 19000 rpm , but its not the case with the spindle
could someone give me some ball park figures for hardwood---softwood--plywood 3/4 thick and acrylics 1/4 thick
thanks

Google cnc chip load chart or cnc chip load calculator. All kinds of info. If you are using Vectric software, and probably others, chip load is calculated when you select the bit parameters, and you can adjust them to get whatever chip load desired.

John